Credits: (3) Instructional Method: Three hours lecture. Prerequisites:BIOL 105 or 121; or GEOG 335 or permission of instructor. Investigation of ways in which humans interact with Earth’s other species. Focus is on the modification of natural ecosystems and organisms from prehistory to the 21st century, including the domestication of plants and animals, dispersal of wild and domestic species, and the development of human-dominated agricultural and urban ecosystems. Some field work is expected.